| This simple circuit detects noise in a room and activates a beeper if the noise exceeds an adjustable threshold level.
All items tagged with Noise and project (3)
| A simple audio-band noise generator is a useful tool for testing amplifiers. In days gone by, you would use a diode or the base-emitter...
| Music, speech, noisy neighbours – sound is all around us. And yet the science of acoustics holds many surprises: sound can be focused into b...